求助一道答案有争议的题目

如题，GWD里既有选A也有选C的，大家说到底是哪一个？？

 
Several financial officers of the company spoke on
condition that they not be named in the press reports.

1. that they not be named
                   
2. that their names
        will not be used
3. that their names are not used
4. of not having their names
5. of not naming them

条件ON CONDICTION THAT子句
        + 原V

如果不用假设语气，要用过去式。